Frank Harrell

@f2harrell

Prof, Founding Chair of Biostatistics, Vanderbilt U. Expert Statistical Advisor, Office of Biostatistics, FDA CDER. Blog: Statistical Thinking -fharrell.com

Nashville, TN
biostat.mc.vanderbilt.edu/FrankHarrell
Дата приєднання: січень 2017
154 фото та відео Фото і відео

Твіти

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  1. ретвітнув(ла)
    19 годин тому

    1. Shut down 2. Jail key decision makers and possibly some of the engineers involved 3. Give the money back to the people it abused (its users) 4. Build ethical replacements for its useful bits

    1 reply 3 ретвіти 17 вподобань
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  2. 16 годин тому

    Glad that has restarted this hot discussion on datamethods. I just posted a response that tries to generalize the question.

    У відповідь @RogueRad, @f2harrell і ще 6
    Topic created here:
    3 ретвіти 9 вподобань
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  3. ретвітнув(ла)
    19 груд.

    Statistically, machine learning has poor modeling practices which should limit generalizability. It doesn't. Why? For tasks like image recognition, all humans on the ML team understand ground truth; in healthcare/science tasks, it won't be the same. We can expect lots of failure.

    28 ретвітів 135 вподобань
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  4. ретвітнув(ла)
    23 години тому

    My Christmas present for the community: 2.7 is now on CRAN extending support for Gaussian processes and fixing a substantial performance bug in some post-processing methods among other new features and improvements.

    71 ретвіт 233 вподобань
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  5. ретвітнув(ла)
    17 груд.

    Please read—well worth your time. Challenges of Non–Intention-to-Treat Analyses | Research, Methods, Statistics | JAMA | JAMA Network

    4 ретвіти 17 вподобань
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  6. ретвітнув(ла)
    17 груд.

    It's a big stretch to put such a positive spin on the wastage of resources that occurs when the scientific pathway is led astray building upon results that can't be replicated.

    “It’s not a replication crisis. It’s an innovation opportunity” Australian cancer researcher Glenn Begley about reproducibility and the meaning of failure in science
    2 ретвіти 3 вподобань
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  7. 17 груд.

    Glad to see questionable research practices elevated with respect to severity of harm to science

    Is it time for a new classification system for scientific misconduct?
    3 ретвіти 10 вподобань
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  8. ретвітнув(ла)
    17 груд.

    A+ beautiful, a grand achievement by it is wonderful to see Byrne on clean background, all the original copies I saw over the years all had extensive foxing. In my Envisioning Information, we fully rebuilt 2 Byrne pages, hand-separated colors for printing.

    I recreated Byrne's 1847 edition of Euclid's Elements including interactive diagrams, cross references, and a new poster of all the original illustrations: Plus an in-depth blog post on how it was made:
    1 reply 17 ретвітів 78 вподобань
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  9. ретвітнув(ла)
    16 груд.

    Let me get this straight: Sears has $25 million laying around to pay out executives who ran the company into the ground, but doesn't have any money to give the thousands of workers they laid off severance pay?

    Sears bankruptcy court OKs $25 million in bonuses for top execs
    32 251 ретвіт 76 942 вподобань
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  10. ретвітнув(ла)
    15 груд.

    Tonight’s ruling creates confusion, puts affordable health insurance at risk, and targets Americans with pre-existing conditions. The Supreme Court already upheld the law’s constitutionality — twice. Sign up tonight for 2019 coverage at .

    53 ретвіти 105 вподобань
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  11. ретвітнув(ла)
    14 груд.

    "It took more than a half century to reach the point where faced with a choice between democracy and power, the party chose the latter," argues George Packer.

    5 246 ретвітів 8 712 вподобань
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  12. ретвітнув(ла)
    14 груд.

    Didn’t he impeach Bill Clinton over the same thing?

    Lindsey Graham: I’m fine with Trump "lying about sex"
    34 259 ретвітів 179 392 вподобань
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  13. ретвітнув(ла)
    14 груд.

    A couple days ago another team asked me to speak about Bayesian data analysis. I decided that instead of doing a nuts/bolts of how to fit/use Bayesian models, I would describe "Bayesian analysis: The Good Parts". <potentially controversial thread>

    231 ретвіт 814 вподобань
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  14. ретвітнув(ла)
    13 груд.

    Not that this is terribly surprising, but still an important message for all to hear.

    0:38
    In the U.S., law enforcement officers kill more than 1,000 civilians each year. New research shows that people who live in states with high gun ownership are much more likely to be shot and killed by police than those in low-gun states
    1 reply 5 ретвітів 2 вподобань
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  15. ретвітнув(ла)
    12 груд.

    Invite others to submit their lists of prevalent faux-pas' compromising reliable evidence generation.

    Value-based Healthcare: analytics may be leaving value on the table
    2 ретвіти 1 вподобання
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  16. ретвітнув(ла)
    12 груд.

    Hi everyone. It’s been awhile since I’ve had a good old-fashioned methods critique, but I'm feeling it today:

    28 ретвітів 98 вподобань
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  17. 12 груд.

    Many Analysts, One Data Set – many conclusions - good discussion continues. Hope that joins in -

    17 ретвітів 53 вподобань
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  18. 11 груд.

    Favorite way to picture probabilities: not with stick figures or frequencies but with a thermometer plot (example below is taken from )

    1 reply 9 ретвітів 29 вподобань
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  19. 11 груд.

    Statistician take of the day: A $100 data analysis can make a $1,000,000 study worth $1,000.

    20 ретвітів 127 вподобань
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  20. 11 груд.

    What the GOP stands for ...

    1 reply 6 вподобань
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@f2harrell ще нічого не твітив(ла).

Схоже, завантаження займе трохи часу.

Можливо, Твіттер перенавантажено або виникли тимчасові труднощі. Спробуйте ще раз або дізнайтеся більше про стан Твіттера.

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